<!doctype html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Deformation</title><style>canvas {
          background: #e3e7e9;
          background-image: linear-gradient(45deg, #f6fafc 25%, transparent 0),
            linear-gradient(45deg, transparent 75%, #f6fafc 0),
            linear-gradient(45deg, #f6fafc 25%, transparent 0),
            linear-gradient(45deg, transparent 75%, #f6fafc 0);
          background-position: 0 0, 12px 12px, 12px 12px, 24px 24px;
          background-size: 24px 24px;
        }</style></head><body><div id="app"></div><script src="main.js"></script></body></html>